4 Pack Square Electrical Box Covers with 1/2 Inch Knockout, 4 Inch Metal Junction Box Covers, Flat Outlet Box Cover for 4 inch Square Box, EBC-square-1

Standard SizeDiameter: 4inch, designed to cover 4 inch square box, make the electrical box safe and pleasing to the eye. These electrical box covers offer a 1/2 in. knockout in the center for easy access into the box | Easy InstallationThe keyhole shaped mounting hole allows for quick installation of cover without removing the box screws(no screws included) | Premium MaterialMade of thick galvanized steel, sturdy and durable, the metal 4" square box covers avoid bending or rusting easily | Useful Home GadgetHouse switches or receptacles, help to prevent children or pets from accidental electrocution | 2 Year WarrantyIf you receive any broken item or have question, contact us any time and we will do our best to provide you friendly service